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| author | Thomas Gleixner <tglx@linutronix.de> | 2020-03-10 14:04:34 +0100 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2020-05-19 15:56:20 +0200 |
| commit | 66e9b0717102507e64f638790eaece88765cc9e5 (patch) | |
| tree | 60aabd710f537f162bd2accebd2f544b3d883565 /kernel/module.c | |
| parent | 4e321b7746e54283362bfa41c833d9f9d5470a3b (diff) | |
| download | linux-66e9b0717102507e64f638790eaece88765cc9e5.tar.gz | |
kprobes: Prevent probes in .noinstr.text section
Instrumentation is forbidden in the .noinstr.text section. Make kprobes
respect this.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Alexandre Chartre <alexandre.chartre@oracle.com>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Acked-by: Masami Hiramatsu <mhiramat@kernel.org>
Link: https://lkml.kernel.org/r/20200505134100.179862032@linutronix.de
Diffstat (limited to 'kernel/module.c')
| -rw-r--r-- | kernel/module.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/kernel/module.c b/kernel/module.c index faf733789560b0..72ed2b3a6ee264 100644 --- a/kernel/module.c +++ b/kernel/module.c @@ -3150,6 +3150,9 @@ static int find_module_sections(struct module *mod, struct load_info *info) } #endif + mod->noinstr_text_start = section_objs(info, ".noinstr.text", 1, + &mod->noinstr_text_size); + #ifdef CONFIG_TRACEPOINTS mod->tracepoints_ptrs = section_objs(info, "__tracepoints_ptrs", sizeof(*mod->tracepoints_ptrs), |